The Aster bloghttps://asterco.app/blogAI news, useful tools, and practical ideas for the code you ship.enAI News This Week: Claude Sonnet 5.5, GPT-6.1 Astra Shelved, DevDay 2026 & ElevenLabs v4https://asterco.app/blog/ai-news-claude-sonnet-5-5-gpt-6-1-astrahttps://asterco.app/blog/ai-news-claude-sonnet-5-5-gpt-6-1-astraWed, 30 Sep 2026 12:00:00 GMTClaude Sonnet 5.5 launched, OpenAI shelved GPT-6.1 Astra hours before DevDay 2026, DevDay shipped 20+ agent launches, and ElevenLabs v4 clones a voice from 10 seconds of audio. What happened, why it matters for builders, and every source.ClaudeOpenAIDevDayElevenLabsAI agents